SGMICRO SGM8477-3GXUWQ10G/TR

The SGM8477-1/3 are low-noise, high-precision CMOS differential amplifiers designed to support precision differential signal processing. These devices operate from a 1.8V to 5.5V single supply or ±0.9V to ±2.75V dual supply, consuming only 380μA of quiescent current. When an external MCU drives the EN pin logic low, the SGM8477-3 draws less than 0.5μA of supply current in shutdown mode. The SGM8477-1/3 feature low noise, a maximum input offset voltage of 10μV, and zero-drift characteristics over time and temperature. These devices are suitable for low-voltage and low-power systems, supporting rail-to-rail input and output operation. In addition, the SGM8477-1/3 are available in compact packages designed to deliver high performance for precision high-side and low-side current sensing applications such as single-cell voltage monitoring. The SGM8477-1/3 integrate matched resistors in differential applications to reduce external component count, and are available in gain versions of 50 and 300. The SGM8477-1 is offered in green SC70-6 and UTQFN-1.8×1.4-10L packages, and the SGM8477-3 is offered in a green UTQFN-1.8×1.4-10L package, both operating over a -40°C to +125°C temperature range.

• Low input offset voltage: 10μV maximum
• Low drift: 0.02μV/°C typical
• 0.1Hz to 10Hz low noise: 250nVₚ₋ₚ
• Low noise at 1kHz: 10nV/√Hz
• Integrated RFI filter
• Rail-to-rail input and output
• Single-supply operation
  • Supply voltage range: 1.8V to 5.5V
  • Quiescent current: 380μA typical
• Shutdown current: <0.5μA
• Operating temperature range: -40°C to +125°C
• Small packages: SGM8477-1 available in green SC70-6 and UTQFN-1.8×1.4-10L packages; SGM8477-3 available in green UTQFN-1.8×1.4-10L package

• Industrial equipment
• Battery-powered devices
• Sensor signal conditioning